[amayausers] Re: Help- Kris' Bad sew quality

Good morning  Ed, 
 
This is Kris's other half Neil. Thanks for post, very informative as always.
 
       The girls original problem was fraying thread breaks with I guess a 
unusual rattling noise that happened all of a sudden while sewing polos. I 
heard them mention a least a couple of broken needles, not sure if that was the 
start of the problem or what. Their first course of action was to replace the 
bobbin case with a new one, the bobbin, replacing needles on affected colors 
and of course scratching their heads.
 
      Then I entered the picture and checked bobbin tension which seemed ok, 
replaced a couple of thread feed rollers that seemed just slightly 
questionable,and ordered a complete set of replacements. Noise in my opinion 
seemed to be coming from the upper portion, needle case of the machine.  From 
all I have read on this list, my first thought was a rotary hook problem. 
proceded to check with the help of the operaters manual. My first look at the 
hook and I came out with satisfactory findings in my opinion, ( gaps and such 
all with in reason, even the hard to see needle guard gap.)  I then called 
Melco and after 2 calls, I was ready to throw in the towel and have a tech come 
out. (They didn't give me alot of confidence in removing and inspecting the 
rotary hook.) After reading more post from the archives I decided to look at 
the hook again and this time took my pencil and push on the needle to see 
deflection of the .001 needle guard gap  and there was none! I tore into it and
  fiddled
 and hmmm'd and hawed, made all the adjustments and said to myself better than 
it was. And to my suprise it WASN'T. Ears are always hearing strange sounds and 
although they were better it still wasn't right.This is where you guys come in. 
Our thread breaks are gone, but the boobin thread issue is still present, with 
are new bobbin case installed! Scratch head, remove bobbin and case, Install 
old bobbin case with new bobbin, Run test design, Perfect! Put new bobbin back 
in plastic bag and place note with it stating not so good. Continue to scratch 
my head.
Our problem I guess was the needle guard gap, will look again at the rotary 
hook, probably removing it from the machine to really maybe understand how it 
works or what the whole can of worms really looks like. Thanks again for your 
very enlightning post, and hope this may even help someone.  
 
Thanks again to everybody who chimed in with their thoughts. You guys are a 
great group.
 
Neil and Kris Nesheim
Embroidery Ink.                                                                
Norridge , IL
"E. Orantes" <e3m@xxxxxxx> wrote: 
Kris,
I received a copy of the scanned sew outs you sent to Herb. At first
glance, it looks like you are having some sort of interference in the
thread/bobbin path after a certain length of thread or bobbin. What I mean
is that the tensions are changing but seem to be doing so consistently to
form a pattern.
I would first suspect the bobbin and bobbin case. Are you using
"Polyester" type bobbin and not "Astra" type bobbins? Be sure you are
inserting the bobbin spool in the back of the bobbin case so that the bobbin
thread comes off the spool in a clockwise direction. You should also be
sure that there is no lint or dust build up under the tension leaf as well
as any lint balls in the small hole under the tension leaf. Sometimes you
can clean out a chunk of lint from under the tension leaf but there's still
a lint ball in the hole that the bobbin passes through and it just won't
come out until you use something like a pin. I'm not an advocate of using
pins or needles to clean out lint because some folks won't use restraint and
can slip and scratch the vital areas of the bobbin case. But sometimes you
just need to use something that small to "pick" out the lint that's trapped.
Lint in the bobbin case can create two problems: one where it binds the
bobbin thread, increasing tension, and another where the lint lifts the
tension leaf slightly whereby releasing the tension so that there is not
enough. These two types of problems can occur at any point and time while
sewing. So if you're scratching your head saying to yourself, it was
running fine for a while and now I can't sew at all, this could be one of
your problems.
Be sure that the bobbin thread runs through the "pigtail spring" and that
the spring is not bent from it's original position or even missing. You
should always have an extra bobbin case to try if you suspect that something
is not right with the one you are using. DO NOT check your bobbin tension
with the bobbin thread in the "pigtail spring" -if you are doing the "YO-
YO" check or "bounce" check. Only check your bobbin tension with the bobbin
thread after it comes out of the bobbin case and just before you pass it
through the "pigtail" spring.
The tension should be at a point where, holding onto the bobbin thread with
one hand, the bobbin case is just about at a point where it wants to start
to slide down but does not slide at all. Opinions vary on this subject.
But this is how I run with my bobbin tension and I feel better about the
results. With the slight added tension, I may have to increase my material
thickness up a notch or so -however that is easy enough to do. When
checking your bobbin tension, always keep one hand under the bobbin case so
that you don't accidentally drop the case on the floor. This is not good
for the bobbin case at all. Fortunately they are cheap enough to replace if
you dent or scratch it.

The other thing I'm thinking is that the thread is not coming off it's
spool on the thread palette smoothly. If your machine is new, chances are
you are using all ARC thread. And if you are using all ARC thread, chances
are you have a spool where the label around the top hole is torn or choppy.
And if the thread tube is too low (not pushed up high enough) then there's a
chance the thread is snagging on the label, or anything else for that
matter, and giving added resistance after a certain length of thread. Be
sure to inspect the entire thread path from the top of the machine to the
bottom of the machine as she runs to see if anything strange presents
itself. With experience, you will be able to study the different areas of
the thread path and deduct important information when problems occur.
Let us know if either of these two areas are causing your problems. If
not, we'll keep at it.
Good luck,
Ed

Ed & Maralien Orantes
E.M. Broidery
900 Terry Parkway, Ste. 200
New Orleans, La. 70056
504-EMBROID ery (504-362-7643)

-----Original Message-----
From: amayausers-bounce@xxxxxxxxxxxxx
[mailto:amayausers-bounce@xxxxxxxxxxxxx]On Behalf Of Kris Nesheim
Sent: Wednesday, May 18, 2005 10:48 PM
To: amayausers@xxxxxxxxxxxxx
Subject: [amayausers] Re: Help


It seemed like he thought I should schedule a tech when I talked to him
today. Could be a manual timing thing, with the x and Y motors?
HK Acree wrote:Neil,
Please elaborate on " Tech at Melco had me turn my adjustment
counterclockwise all the way to 0" part.

Herb
----- Original Message -----
From: "Kris Nesheim"
To:
Sent: Wednesday, May 18, 2005 8:29 PM
Subject: [amayausers] Re: Help


> Tech at Melco had me turn my adjustment counterclockwise all the way to 0,
> and material thickness down to 2 for broadcloth. We had the same results.
> This was before I made adjustments to the rotary hook. problem with the
> rotary hook that I noticed was the needle guard gap seemed non existent.
> After adjusting it, it sewed out with the same results. I then rebooted
> both computer and machine and had one good sew out, and changed colors and
> had another bad. Went to the good sew out color and had another faulty sew
> out. Checked adjustments on rotary hook and am still satisfied with
> previous adjustments. Thanks for your input. Neil
> Russell Silva wrote: Presser foot height is
> also very important, I was just doing a design
> earlier today and forgot to lower it and got a lot of thread breaks, when
> I
> lowered it they went away, might not be the problem but worth looking at.
> Russell Silva
> R. S. Embroidery
> 508-222-4433
>
> ----- Original Message -----
> From: "Kris Nesheim"
> To:
> Sent: Wednesday, May 18, 2005 7:08 PM
> Subject: [amayausers] Help
>
>
>>
>> I was wondering if anyone could give us any ideas on our first Amaya
>> problem. Alot of
>>
>> thread breaks and to us not the usual running sound. Talked to Melco
>> ,said to run
>>
>> sample design for thread breaks. Did that and part of the design looks
>> ok,
>> and then in the
>>
>> middle of it the sew out looks way different no bobbin showing and thread
>> breaks galore.
>>
>> Any suggestions or do we just schedule a tech? Anyone know one in the
>> Chicago land
>>
>> area? We only have one machine and need to get up and running.
>>
>>
>> Kris
>> Nesheim
>>
>> Embroidery
>> Ink.
>> Norridge ,
>> IL
>>
>>
>
>
>
>
>
>
>

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